National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, May 1976

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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1976
1-Month
2.93"
(74.42mm)
2.91"
(73.91mm)
0.02"
(0.51mm)
64th Driest
Driest since:
1934
65th Wettest
Wettest since:
2019
Apr–May 1976
2-Month
5.22"
(132.59mm)
5.43"
(137.92mm)
-0.21"
(-5.33mm)
50th Driest
Driest since:
1934
79th Wettest
Wettest since:
1957
Mar–May 1976
3-Month
7.79"
(197.87mm)
7.94"
(201.68mm)
-0.15"
(-3.81mm)
57th Driest
Driest since:
1925
72nd Wettest
Wettest since:
1957, 1991
Feb–May 1976
4-Month
9.68"
(245.87mm)
10.07"
(255.78mm)
-0.39"
(-9.91mm)
51st Driest
Driest since:
1925
78th Wettest
Wettest since:
2019
Ties: 1950
Jan–May 1976
5-Month
11.44"
(290.58mm)
12.39"
(314.71mm)
-0.95"
(-24.13mm)
25th Driest
Driest since:
1934
104th Wettest
Wettest since:
2019
Ties: 1986
Dec 1975–May 1976
6-Month
13.55"
(344.17mm)
14.73"
(374.14mm)
-1.18"
(-29.97mm)
25th Driest
Driest since:
1931
103rd Wettest
Wettest since:
2019
Nov 1975–May 1976
7-Month
15.83"
(402.08mm)
16.96"
(430.78mm)
-1.13"
(-28.70mm)
33rd Driest
Driest since:
1934
95th Wettest
Wettest since:
1983
Oct 1975–May 1976
8-Month
18.13"
(460.50mm)
19.13"
(485.90mm)
-1.00"
(-25.40mm)
32nd Driest
Driest since:
1934
96th Wettest
Wettest since:
2019
Sep 1975–May 1976
9-Month
20.79"
(528.07mm)
21.62"
(549.15mm)
-0.83"
(-21.08mm)
39th Driest
Driest since:
1934
89th Wettest
Wettest since:
2019
Aug 1975–May 1976
10-Month
23.62"
(599.95mm)
24.25"
(615.95mm)
-0.63"
(-16.00mm)
42nd Driest
Driest since:
1918
86th Wettest
Wettest since:
2019
Ties: 1957, 1994
Jul 1975–May 1976
11-Month
26.59"
(675.39mm)
27.03"
(686.56mm)
-0.44"
(-11.17mm)
49th Driest
Driest since:
1931
79th Wettest
Wettest since:
2019
Ties: 1928
Jun 1975–May 1976
12-Month
29.90"
(759.46mm)
29.95"
(760.73mm)
-0.05"
(-1.27mm)
57th Driest
Driest since:
1934
71st Wettest
Wettest since:
2019
Dec 1974–May 1976
18-Month
46.89"
(1,191.01mm)
44.70"
(1,135.38mm)
2.19"
(55.63mm)
94th Driest
Driest since:
1931
33rd Wettest
Wettest since:
2019
Jun 1974–May 1976
24-Month
62.01"
(1,575.05mm)
59.92"
(1,521.97mm)
2.09"
(53.08mm)
91st Driest
Driest since:
1931
36th Wettest
Wettest since:
2020
Jun 1973–May 1976
36-Month
95.25"
(2,419.35mm)
89.88"
(2,282.95mm)
5.37"
(136.40mm)
107th Driest
Driest since:
1955
19th Wettest
Wettest since:
2019
Jun 1972–May 1976
48-Month
130.28"
(3,309.11mm)
119.78"
(3,042.41mm)
10.50"
(266.70mm)
118th Driest
Driest since:
1956
7th Wettest
Wettest since:
2019
Jun 1971–May 1976
60-Month
160.82"
(4,084.83mm)
149.64"
(3,800.86mm)
11.18"
(283.97mm)
117th Driest
Driest since:
1957
7th Wettest
Wettest to Date
2020

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